People with hard-to-treat asthma often have to use medicines such as systemic steroids that broadly suppress the immune ...

During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

Antibodies, which recognize viruses and proteins that the body has encountered before, have long gotten most of the credit for giving the human immune system a memory. Now, researchers at the ...

Although chemotherapy helps kill cancer cells, it can also affect healthy white blood cells, weakening the immune system. Eating nutritious foods, exercising, and avoiding illnesses are some ways to ...

Scientists have uncovered an unexpected mechanism by which the gut’s immune system maintains balance, challenging ...

You might know your immune system as the built-in, around-the-clock surveillance system primed to keep nasty germs out and swiftly kick to the curb any that do manage to sneak in. It’s a system primed ...

Experts break down why eggs—a simple, high-quality protein—are immunity-strengthening heroes, and the best ways to cook them.